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花生赤霉素3-β-双加氧酶(AhGA3ox)基因家族的全基因组鉴定及表达分析
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作者 李海芬 鲁清 +6 位作者 刘浩 温世杰 王润风 黄璐 陈小平 洪彦彬 梁炫强 《作物学报》 CAS CSCD 北大核心 2024年第4期932-943,共12页
赤霉素3-β-双加氧酶(gibberellin 3-beta-dioxygenase,GA3ox)是参与赤霉素生物合成的关键酶之一,可通过影响赤霉素的形成调控植物的生长发育,目前在花生中尚无系统研究。本研究利用生物信息学方法在花生栽培种基因组数据库中筛选花生GA... 赤霉素3-β-双加氧酶(gibberellin 3-beta-dioxygenase,GA3ox)是参与赤霉素生物合成的关键酶之一,可通过影响赤霉素的形成调控植物的生长发育,目前在花生中尚无系统研究。本研究利用生物信息学方法在花生栽培种基因组数据库中筛选花生GA3ox家族基因,对鉴定出的7个AhGA3ox在栽培种花生基因组中的分布、结构及进化特征、理化性质、启动子顺式作用元件进行分析,并利用qRT-PCR技术对其进行花生组织结构表达模式分析,同时对AhGA3ox家族基因在不同荚果大小的2个花生品系中的表达量进行分析。结果表明,7个AhGA3ox基因分布在7条染色体上,均由1个内含子和2个外显子组成。花生AhGA3ox蛋白中均包含1个DIOX_N结构域和1个2OG-FeII_Oxy结构域,系统进化分析表明与大豆的亲缘关系较近,在根、茎、叶、花、果针5个组织中呈现出不同表达模式,不仅在花生果壳不同发育时期的表达量不同,在2个荚果大小不同的花生品系果壳相同发育时期的表达量也不相同,但多数发育时期在大果品系中的表达量均显著高于小果品系,推测该家族基因的表达可能对荚果的形成具有促进作用。 展开更多
关键词 花生 GA3ox 表达分析 生物信息学 功能分析
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甘蔗赤霉素合成基因ScGA3ox的功能初步研究
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作者 范业赓 赖振光 +7 位作者 李燕娇 陈荣发 闫海锋 邓宇驰 丘立杭 周忠凤 李杨瑞 吴建明 《甘蔗糖业》 2024年第4期52-59,共8页
近年来在拟南芥、水稻等模式植物中对赤霉素生物合成途径的研究日益完善,而重要糖料作物甘蔗中的赤霉素生物合成途径尚未明确,为了进一步验证ScGA3ox的功能,开展了甘蔗赤霉素合成基因ScGA3ox的功能初步研究。本文通过构建甘蔗GA3氧化酶... 近年来在拟南芥、水稻等模式植物中对赤霉素生物合成途径的研究日益完善,而重要糖料作物甘蔗中的赤霉素生物合成途径尚未明确,为了进一步验证ScGA3ox的功能,开展了甘蔗赤霉素合成基因ScGA3ox的功能初步研究。本文通过构建甘蔗GA3氧化酶基因ScGA3ox的植物过量表达载体,并将该基因通过农杆菌介导法转化到拟南芥中来快速验证其在植株生长中的功能。结果表明:本研究成功构建了ScGA3ox过量表达载体,并转化拟南芥获得过表达转基因T2株系。ScGA3ox过量表达对拟南芥的表型产生了影响:ScGA3ox转基因拟南芥株系与野生植株(WT)在株高上存在较为明显的差异,ScGA3ox-1和ScGA3ox-2株系分别比野生植株矮5.04和2.33cm。甘蔗GA3氧化酶基因ScGA3ox对植物生长有重要影响,但其具体功能研究有待深入开展。本研究结果将为进一步解析ScGA3ox基因调控甘蔗节间长度的分子机理提供了理论支撑。 展开更多
关键词 甘蔗 赤霉素合成基因 ScGA3ox 过表达
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银杏素调节TGF⁃β1/Smad通路对ox⁃LDL诱导血管内皮细胞损伤的影响
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作者 李贺 曹慧 冯莉莉 《解剖学研究》 CAS 2024年第1期19-24,39,共7页
目的探讨银杏素调节转化生长因子⁃β1(TGF⁃β1)/Smad信号通路对ox⁃LDL诱导血管内皮细胞损伤的影响。方法将人脐静脉血管内皮细胞HUVEC分为对照组(未处理的HUVEC细胞)、模型组(50μg/mL ox⁃LDL处理的HUVEC细胞)、银杏素组(50μg/mL ox⁃LD... 目的探讨银杏素调节转化生长因子⁃β1(TGF⁃β1)/Smad信号通路对ox⁃LDL诱导血管内皮细胞损伤的影响。方法将人脐静脉血管内皮细胞HUVEC分为对照组(未处理的HUVEC细胞)、模型组(50μg/mL ox⁃LDL处理的HUVEC细胞)、银杏素组(50μg/mL ox⁃LDL+12.5μmol/L银杏素处理HUVEC细胞)、SRI⁃011381组(50μg/mL ox⁃LDL+10μmol/L的TGF⁃β1/Smad激活剂SRI⁃011381处理HUVEC细胞)、银杏素+SRI⁃011381组(50μg/mL ox⁃LDL+12.5μmol/L银杏素+10μmol/L的SRI⁃011381共同处理HUVEC细胞)。ELISA试剂盒检测HUVEC细胞丙二醛(MDA)、谷胱甘肽(GSH)、超氧化物歧化酶(SOD)、IL⁃6、IL⁃1β、TNF⁃α水平;CCK⁃8法检测HUVEC细胞增殖;流式细胞术检测HUVEC细胞凋亡率;Western blot检测细胞上皮间质转化(EMT)、TGF⁃β1/Smad通路相关蛋白表达。结果与对照组相比,模型组IL⁃1β、IL⁃6、TNF⁃α、MDA水平、细胞凋亡率、TGF⁃β1、Smad3、神经型钙黏附蛋白(N⁃cadherin)、波形蛋白(Vimentin)蛋白水平显著增加(P<0.05),A值、GSH、SOD水平、上皮钙黏附素(E⁃cadherin)蛋白水平显著降低(P<0.05);与模型组相比,银杏素组IL⁃1β、IL⁃6、TNF⁃α、MDA水平、细胞凋亡率、TGF⁃β1、Smad3、N⁃cadherin、Vimentin蛋白水平显著下降(P<0.05),A值、GSH、SOD水平、E⁃cadherin蛋白水平显著升高(P<0.05),而SRI⁃011381组趋势相反,SRI⁃011381减弱了银杏素对ox⁃LDL诱导的HUVEC细胞损伤的抑制作用。结论银杏素可能通过下调TGF⁃β1/Smad信号通路对ox⁃LDL诱导的血管内皮细胞损伤起到改善作用。 展开更多
关键词 银杏素 TGF⁃β1/Smad信号通路 氧化低密度脂蛋白 血管内皮细胞 氧化损伤
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小麦OXS3基因家族的鉴定及表达模式分析 被引量:1
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作者 李杰 冯永佳 +6 位作者 李培华 刁邓超 李云丽 孙玉晨 孟祥宇 韩德俊 郑炜君 《麦类作物学报》 CAS CSCD 北大核心 2024年第7期846-854,共9页
氧化应激3蛋白(OXS3)是一种植物特异性蛋白,在植物逆境耐受性中发挥重要作用。本研究利用生物信息学方法,在全基因组水平对小麦中的OXS3基因家族成员进行了鉴定,并对所有成员进行了高温胁迫下的表达模式分析以及4个小麦OXS3基因的酵母... 氧化应激3蛋白(OXS3)是一种植物特异性蛋白,在植物逆境耐受性中发挥重要作用。本研究利用生物信息学方法,在全基因组水平对小麦中的OXS3基因家族成员进行了鉴定,并对所有成员进行了高温胁迫下的表达模式分析以及4个小麦OXS3基因的酵母转化验证试验。结果表明,小麦具有9个OXS3基因,分布于8条染色体上,聚类为三个亚家族,主要定位于细胞核;小麦OXS3基因家族成员的启动子区具有多个激素响应和逆境响应顺式作用元件,暗示该家族成员在植物逆境响应中可能承担重要角色。共线性分析表明OXS3基因家族在单/双子叶植物间存在较大差异。qRT-PCR分析表明,小麦OXS3家族基因在高温胁迫下均上调表达。转化酵母的耐热功能验证表明,小麦基因TaOXS3-1D、TaOXS3-2A可以提高酵母的耐热性。本研究结果为系统研究OXS3的耐热功能奠定了基础。 展开更多
关键词 小麦 oxS3蛋白 基因家族 高温胁迫
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2型糖尿病患者血清可溶性OX40配体、细胞因子信号转导抑制因子3与糖尿病肾病的相关性分析
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作者 刘媛 张红瑾 刘佳 《东南大学学报(医学版)》 CAS 2024年第3期410-415,共6页
目的:探究血清可溶性OX40配体(sOX40L)、细胞因子信号转导抑制因子3(SOCS-3)水平及其与2型糖尿病并发糖尿病肾病的相关性。方法:选取本院2021年1月至2022年6月收治的2型糖尿病患者116例进行研究,根据尿白蛋白排泄率(UAER)将患者分为一般... 目的:探究血清可溶性OX40配体(sOX40L)、细胞因子信号转导抑制因子3(SOCS-3)水平及其与2型糖尿病并发糖尿病肾病的相关性。方法:选取本院2021年1月至2022年6月收治的2型糖尿病患者116例进行研究,根据尿白蛋白排泄率(UAER)将患者分为一般2型糖尿病组(n=65)和糖尿病肾病组(n=51)。另选取60例同期体检的健康志愿者作为对照组。采用酶联免疫吸附测定法(ELISA)检测血清sOX40L和SOCS-3水平;Pearson法分析2型糖尿病并发糖尿病肾病患者血清sOX40L水平与SOCS-3水平的关系;Logistic回归分析2型糖尿病并发糖尿病肾病的影响因素;使用二元Logistics回归,将血清sOX40L和SOCS-3水平作为X,是否发生为Y,通过形成的预测概率为“二者联合”指标,然后将该指标纳入X,建立受试者工作特征(ROC)曲线,分析血清sOX40L和SOCS-3及二者联合对2型糖尿病患者并发糖尿病肾病的诊断价值。结果:与对照组相比,一般2型糖尿病组和糖尿病肾病组患者血清sOX40L、SOCS-3水平显著升高(P<0.05);与一般2型糖尿病组相比,糖尿病肾病组患者血清sOX40L、SOCS-3水平显著升高。2型糖尿病并发糖尿病肾病患者血清sOX40L水平与SOCS-3水平呈正相关(r=0.601,P<0.001);血清sOX40L和SOCS-3水平为2型糖尿病并发糖尿病肾病的独立影响因素(P<0.05)。血清sOX40L和SOCS-3单独诊断2型糖尿病并发糖尿病肾病的曲线下面积(AUC)分别为0.794、0.817,截断值分别为8.73 ng·mL^(-1)、1.37 mg·mL^(-1),灵敏度分别为82.4%、78.4%,特异度分别为67.7%、84.6%,且sOX40L和SOCS-3联合诊断的AUC为0.934,灵敏度为98.0%,特异度为83.1%。结论:2型糖尿病并发糖尿病肾病患者血清sOX40L和SOCS-3水平升高,二者联合可较好地诊断2型糖尿病并发糖尿病肾病。 展开更多
关键词 2型糖尿病 ox40配体 细胞因子信号转导抑制因子3 糖尿病肾病
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短暂性脑缺血发作患者血清ox-LDL、sdLDL-C水平及其临床意义
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作者 尚雪峰 王娟 张鹏轩 《分子诊断与治疗杂志》 2024年第6期1161-1164,共4页
目的 探究短暂性脑缺血发作(TIA)患者血清氧化性低密度脂蛋白(ox-LDL)、小而密低密度脂蛋白胆固醇(sdLDL-C)水平及其临床意义。方法 选取2021年4月至2022年9月延安大学附属医院收治的216例短暂性脑缺血发作(TIA)患者设为观察组,根据ABC... 目的 探究短暂性脑缺血发作(TIA)患者血清氧化性低密度脂蛋白(ox-LDL)、小而密低密度脂蛋白胆固醇(sdLDL-C)水平及其临床意义。方法 选取2021年4月至2022年9月延安大学附属医院收治的216例短暂性脑缺血发作(TIA)患者设为观察组,根据ABCD-3评分将观察组患者分为低危组(n=77)、中危组(n=93)和高危组(n=46),另选同期入院的健康体检者150名为对照组。对比两组以及观察组不同ABCD-3评分患者血清ox-LDL、sdLDL-C水平;采用Pearson相关系数分析血清ox-LDL、sdLDL-C水平与ABCD3评分的相关性;发病后随访患者1年,根据是否发生缺血性脑卒中(AIS)将观察组患者分为AIS组(n=43)和非AIS组(n=173),比较两组血清ox-LDL、sdLDL-C水平;采用受试者工作曲线分析血清ox-LDL、sdLDL-C水平对TIA患者进展为AIS的预测价值。结果 观察组血清血清ox-LDL、sdLDL-C水平显著高于对照组,差异有统计学意义(P<0.05);血清ox-LDL、sdLDL-C水平:低危组<中危组<高危组,差异有统计学意义(P<0.05);Pearson相关系数分析显示,TIA患者血清ox-LDL、sdLDL-C水平与ABCD-3评分呈显著正相关(P<0.05);AIS组血清ox-LDL、sdLDL-C水平显著高于非AIS组,差异有统计学意义(P<0.05);ROC曲线分析显示,血清ox-LDL、sdLDL-C水平单独及联合预测TIA患者进展为AIS的敏感度为0.791、0.814、0.954,特异度为0.751、0.636、0.624,AUC为0.789、0.792、0.872。结论 TIA患者血清ox-LDL、sdLDL-C水平均呈高表达,且与患者病情显著相关,二指标对TIA患者进展为AIS具有较高的预测价值。 展开更多
关键词 短暂性脑缺血发作 氧化性低密度脂蛋白 小而密低密度脂蛋白胆固醇
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益母草碱对ox-LDL诱导的THP-1源性巨噬细胞焦亡的保护作用
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作者 杨依壮 陈旭 +2 位作者 艾锐 侯新月 王娟 《华夏医学》 CAS 2024年第2期46-53,共8页
目的探讨益母草碱(LEO)对氧化低密度脂蛋白(ox-LDL)诱导的THP-1源性巨噬细胞焦亡的保护作用。方法采用MTT法检测不同浓度LEO对THP-1巨噬细胞/THP-1源性泡沫细胞活力;采用油红O染色评估细胞内脂质蓄积的情况,并检测细胞内总胆固醇(TC)、... 目的探讨益母草碱(LEO)对氧化低密度脂蛋白(ox-LDL)诱导的THP-1源性巨噬细胞焦亡的保护作用。方法采用MTT法检测不同浓度LEO对THP-1巨噬细胞/THP-1源性泡沫细胞活力;采用油红O染色评估细胞内脂质蓄积的情况,并检测细胞内总胆固醇(TC)、甘油三酯(TG)的含量以及细胞上清液中白细胞介素-1β(IL-1β)、白细胞介素-18(IL-18)和乳酸脱氢酶(LDH)含量;采用Western blot检测细胞焦亡相关蛋白的表达水平;采用流式细胞术测定活性氧(ROS)水平。结果随着LEO浓度的增加,细胞活性与LEO的浓度呈正相关。LEO干预后,细胞内TC和TG的含量降低,细胞内脂质积累减少,且LEO可下调细胞焦亡相关蛋白NLRP3、N-GSDMD、Cleaved Caspase-1的表达,同时经LEO处理可逆转ox-LDL诱导的ROS生成增加。结论LEO可以减缓由ox-LDL诱导的THP-1巨噬细胞内脂质积累,并且可以抑制ox-LDL诱导的THP-1巨噬细胞焦亡的发生。 展开更多
关键词 益母草碱 巨噬细胞 氧化低密度脂蛋白 细胞焦亡
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Overexpression of PbrGA2ox1 enhances pear drought tolerance through the regulation of GA_(3)-inhibited reactive oxygen species detoxification and abscisic acid signaling
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作者 Guoling Guo Haiyan Zhang +10 位作者 Weiyu Dong Bo Xu Youyu Wang Qingchen Zhao Lun Liu Xiaomei Tang Li Liu Zhenfeng Ye Wei Heng Liwu Zhu Bing Jia 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2024年第9期2989-3011,共23页
Drought stress is a devastating natural disaster driven by the continuing intensification of global warming,which seriously threatens the productivity and quality of several horticultural crops,including pear.Gibberel... Drought stress is a devastating natural disaster driven by the continuing intensification of global warming,which seriously threatens the productivity and quality of several horticultural crops,including pear.Gibberellins(GAs)play crucial roles in plant growth,development,and responses to drought stress.Previous studies have shown significant reductions of GA levels in plants under drought stress;however,our understanding of the intrinsic regulation mechanisms of GA-mediated drought stress in pear remains very limited.Here,we show that drought stress can impair the accumulation of bioactive GAs(BGAs),and subsequently identified PbrGA2ox1 as a chloroplast-localized GA deactivation gene.This gene was significantly induced by drought stress and abscisic acid(ABA)treatment,but was suppressed by GA_(3)treatment.PbrGA2ox1-overexpressing transgenic tobacco plants(Nicotiana benthamiana)exhibited enhanced tolerance to dehydration and drought stresses,whereas knock-down of PbrGA2ox1 in pear(Pyrus betulaefolia)by virus-induced gene silencing led to elevated drought sensitivity.Transgenic plants were hypersensitive to ABA,and had a lower BGAs content,enhanced reactive oxygen species(ROS)scavenging ability,and augmented ABA accumulation and signaling under drought stress compared to wild-type plants.However,the opposite effects were observed with PbrGA2ox1 silencing in pear.Moreover,exogenous GA_(3)treatment aggravated the ROS toxic effect and restrained ABA synthesis and signaling,resulting in the compromised drought tolerance of pear.In summary,our results shed light on the mechanism by which BGAs are eliminated in pear leaves under drought stress,providing further insights into the mechanism regulating the effects of GA on the drought tolerance of plants. 展开更多
关键词 PEAR GIBBERELLIN drought stress PbrGA2ox1 reactive oxygen species abscisic acid
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抗OX40/EGFR双特异性抗体的制备和活性鉴定
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作者 晋瑞娜 边海波 +2 位作者 张晓敏 杨帆 王晚萍 《首都医科大学学报》 CAS 北大核心 2024年第2期296-301,共6页
目的构建同时靶向表皮生长因子受体(epidermal growth factor receptor,EGFR)和OX40的双特异性抗体,并在体外初步验证其对T细胞的特异性激活作用。方法构建抗OX40/EGFR双特异性抗体的真核表达载体,转染293F细胞进行表达和纯化。构建外... 目的构建同时靶向表皮生长因子受体(epidermal growth factor receptor,EGFR)和OX40的双特异性抗体,并在体外初步验证其对T细胞的特异性激活作用。方法构建抗OX40/EGFR双特异性抗体的真核表达载体,转染293F细胞进行表达和纯化。构建外源表达OX40和EGFR的HEK293T细胞,利用流式细胞术分析双抗与靶蛋白表达细胞的结合活性。并利用Jurkat-OX40-NF-κB-GFP报告细胞,验证双特异性抗体对报告细胞的激活活性。通过酶联免疫吸附法(enzyme-linked immunosorbent assay,ELISA)检测外周血单个核细胞(peripheral blood mononuclear cell,PBMC)的白细胞介素-2(interleukin-2,IL-2)和γ-干扰素(interferon-γ,IFN-γ)分泌,进一步验证抗OX40/EGFR双抗对原代T细胞的激活。结果成功构建并且纯化了抗OX40/EGFR双特异性抗体,并且验证了该双抗可以特异性地结合表达EGFR和OX40的HEK293T细胞。在表达EGFR的A549肺癌细胞介导的交联作用下,该双特异性抗体较OX40单抗更强地激活OX40-NF-κB报告细胞,并且促进PBMC分泌IL-2和IFN-γ细胞因子。结论抗OX40/EGFR双特异性抗体构建成功,可同时识别OX40和EGFR受体并激活肿瘤特异性T细胞。 展开更多
关键词 ox40 表皮生长因子受体 双特异性抗体 癌症 T细胞激活
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Effect of Different Raw Material Processing Methods on the Quality of Apple Distilled Spirits
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作者 YU Zhi-hai PU Jiang-hua +5 位作者 BAN Zhen-zhu ZHAO He-xiang HUANG Gui-dan HUANG Xiao-yan SHI Ming-zhi HUANG Ming-zheng 《Agricultural Science & Technology》 CAS 2024年第2期44-50,共7页
In this study,the effect of yeast strains(X16 and RMS2),fruit seed,and pectinase on the quality of apple distilled spirits were investigated with apple as material.The results showed that pectinase shortened the ferme... In this study,the effect of yeast strains(X16 and RMS2),fruit seed,and pectinase on the quality of apple distilled spirits were investigated with apple as material.The results showed that pectinase shortened the fermentation period.The strain X16,fruit seed remaining,and pectinase addition groups had higher yields of crude distilled spirits than the strain RMS2,fruit seed removal,and without pectinase groups,respectively.Regarding the first-grade distilled spirits quality,the X16 group had higher content of total acids,total esters,higher alcohols,and alcohol content than the RMS2 group;the group with fruit seeds had higher total acids but lower alcohol content and total esters than the group with fruit seed removal;the group with pectinase addition had higher total acids and alcohol content than the group without pectinase addition.Regarding the second-grade distilled spirits quality,the X16 group had higher total acids,total esters,and alcohol content than the RMS2 group;the group without fruit seeds had higher alcohol content than the group with fruit seeds;the group with pectinase addition showcased higher total acids but lower alcohol content than the group without pectinase addition.In summary,yeast strains and pectinase affected the quality of apple distilled spirits,and strain X16 was more suitable for brewing apple distilled spirits.Pectinase affected the quality of apple distilled spirits by affecting fermentation rate and temperature. 展开更多
关键词 Apple distilled spirits Yeast strains Fruit seeds PECTINASE
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程序性死亡配体-1与OX40L在NK/T细胞淋巴瘤中的表达及临床意义
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作者 宁华汉 李芊芊 +1 位作者 吴哲丹 李晓飞 《锦州医科大学学报》 CAS 2024年第2期80-85,共6页
目的通过检测程序性死亡配体-1(PD-L1)和OX40L在NK/T细胞淋巴瘤中的表达,分析PD-L1及OX40L的表达与NK/T细胞淋巴瘤的临床分期、LDH水平、β2微球蛋白水平、Ki-67等之间的关系,通过二者表达水平的相关性分析探讨二者在肿瘤局部微环境的... 目的通过检测程序性死亡配体-1(PD-L1)和OX40L在NK/T细胞淋巴瘤中的表达,分析PD-L1及OX40L的表达与NK/T细胞淋巴瘤的临床分期、LDH水平、β2微球蛋白水平、Ki-67等之间的关系,通过二者表达水平的相关性分析探讨二者在肿瘤局部微环境的表达关系。方法应用Envision法检测35例NK/T细胞淋巴瘤组织(观察组)和17例慢性鼻-鼻窦炎组织(对照组)中PD-L1及OX40L的表达情况,探讨NK/T细胞淋巴瘤的临床病理特征与两种因素之间的相互联系,并分析这两种因素表达水平之间的相关性。利用SPSS 26.0软件对所得数据进行综合统计处理。组间差异的比较采用χ^(2)检验,相关性分析采用非参数Spearman秩相关分析,以P<0.05为差异有统计学意义。结果(1)PD-L1在NK/T细胞淋巴瘤组织(74.3%)中的表达与在慢性鼻-鼻窦炎伴鼻息肉组织(76.5%)中的表达,P>0.05表示差异无统计学意义。NK/T细胞淋巴瘤组织中PD-L1的阳性表达的关联因素常见为临床分期(Ann Arbor分期)、LDH水平、Ki-67(P<0.05),而与患者性别、年龄、临床症状、β2微球蛋白关联不明显;(2)OX40L在NK/T细胞淋巴瘤组织(37.1%)中的表达低于对照组(88.2%),差异有统计学意义。NK/T细胞淋巴瘤组织中OX40L的阳性表达与临床分期有关(P<0.05),与患者性别、年龄、临床症状、β2微球蛋白水平、LDH水平、Ki-67无明显相关性;(3)NK/T细胞淋巴瘤组织中PD-L1、OX40L的表达呈负相关(r=-0.630,P<0.05);(4)PD-L1与NK/T细胞淋巴瘤的临床疗效呈负相关(r=-0.344,P<0.05),而OX40L与NK/T细胞淋巴瘤的临床疗效无相关性。结论PD-L1的高表达及OX40L的低表达可能参与NK/T细胞瘤的发展。PD-L1与临床疗效的相关性,进而说明PD-1/PD-L1信号通路可能成为NK/T细胞淋巴瘤免疫治疗的新靶点。 展开更多
关键词 PD-L1 ox40L 淋巴瘤 NK细胞 免疫组织化学
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From Rejection to Embracement:The Catholic Perception of Spiritism in Brazil
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作者 Beatriz Francisco Sandrim 《Cultural and Religious Studies》 2024年第4期224-233,共10页
The history of the relationship between Spiritism and Catholicism in Brazil can be traced through pivotal moments in the trajectory of the First Republic and the religious field since the 19th century,reflecting Brazi... The history of the relationship between Spiritism and Catholicism in Brazil can be traced through pivotal moments in the trajectory of the First Republic and the religious field since the 19th century,reflecting Brazil’s evolution into a modern,urban,and industrial society.Introduced to Brazil in the 1880s,Spiritism initially faced severe opposition from the Catholic Church,being dismissed as superstition and demon worship due to its engagement with death and spirits.Unlike Christianity,Spiritism denies the divinity of Jesus,the resurrection,and the sanctity of Church sacraments,viewing demons and angels merely as disembodied souls at different spiritual stages.Early perceptions were further complicated by the mixing of Spiritism with African and indigenous rites,which led critics to associate it with madness and mental health threats.However,the relationship between Catholicism and Spiritism in Brazil has evolved positively,particularly following the popularization of Spiritism by figures like Chico Xavier.Modern Brazilian society,characterized by increased education and religious syncretism,has grown more tolerant of diverse practices and beliefs,diminishing historical prejudices against Spiritists.This qualitative study,drawing on scholarly research and first-hand interviews,reveals that Spiritism's acceptance among Brazilian Catholics is due to its convergence with contemporary social values and the evolving profile of the average Catholic.Despite possessing a religion-like character,Spiritism is seen less as a distinct religion and more as a complementary set of practices and beliefs that enhance Catholic faith.This phenomenon mirrors the integration of Agama Hindu practices,reinforcing rather than undermining traditional religious identities. 展开更多
关键词 spiritism Brazilian Catholicism religious syncretism
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Entrepreneurial Spirit for China in the New Era and Strategies for Cultivation
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作者 Xu Yuanhua He Jun +1 位作者 Sun Zao Li Xiaoke 《China Economist》 2024年第5期48-59,共12页
What type of entrepreneurial spirit is needed for China’s new era,and how can we unlock its innovation potential?Answers to these questions will unleash vital forces to drive China’s high-quality economic developmen... What type of entrepreneurial spirit is needed for China’s new era,and how can we unlock its innovation potential?Answers to these questions will unleash vital forces to drive China’s high-quality economic development.After reviewing the theories,dimensions,features,and limitations of the entrepreneurial spirit in the Western context,we concluded that the entrepreneurial spirit in China’s new era,which is characterized by patriotism,innovation,trustworthiness,adherence to the law,fulfillment of social responsibilities,and a global horizon,has overcome the limitations that come with self-interested entrepreneurship in the context of Western economics.This is a major step forward in the development of theories on entrepreneurial spirit.In the development context of the new era,this paper argues that the entrepreneurial spirit should become an important force at the individual level to implement the new development concept,foster the new development paradigm,and promote high-quality development in the new stage.This paper provides answers to the question of what type of entrepreneurial spirit China’s new era requires.Finally,this paper presents basic strategies for cultivating entrepreneurial spirit in the context of China’s new era,emphasizing the importance to promote the healthy growth of young entrepreneurs,ensure their business autonomy,develop a multi-tiered capital market,implement the factor market reforms,improve the business climate,and accelerate the digital transition. 展开更多
关键词 Context of China’s new era context of Western economics entrepreneurial spirit high-quality development cultivation strategy
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Innovation and Practice of the Cultivation Mode of Application-Oriented Undergraduate Talents in Agricultural and Forestry Colleges under the Guidance of the Spirit of the Great Northern Wilderness
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作者 Dawei Yin Xiaohong Guo +10 位作者 Hui Yang Wen Zheng Mingyu Fan Xiaodan Xu Qitao Li Xiuzhi Wang Hongyu Li Guiping Zheng Haize Wang Menghong Liu Yueyue Liu 《Open Journal of Applied Sciences》 2024年第8期2027-2038,共12页
Heilongjiang reclamation area has made great progress since its development and construction, among which the agricultural and forestry colleges in China have played a key role in the input of talents for the producti... Heilongjiang reclamation area has made great progress since its development and construction, among which the agricultural and forestry colleges in China have played a key role in the input of talents for the production of reclamation area, and the spirit of the Great Wilderness has important strategic significance for the cultivation of agricultural and forestry talents. Taking Heilongjiang Bayi Agricultural University as an example, this paper analyzes the ways of the Great Northern Wilderness Spirit for cultivating application-oriented undergraduate talents in agricultural and forestry colleges, improving the curriculum system of undergraduate talents through innovation, strengthening the cultivation of students’ innovative ability, leading students’ scientific research and academic level, and enhancing students’ practical ability. To innovate the cultivation mode of application-oriented undergraduate talents in agricultural and forestry colleges under the guidance of the spirit of the Great Northern Wilderness, and to provide a reference mode for the cultivation of undergraduate talents in agricultural and forestry colleges in China. 展开更多
关键词 Northern Wilderness spirit Undergraduate Talents Research Application Cultivation Mode INNOVATION
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From Differential Mode of Association to Tianxia Worldview:A Study on Chinese Entrepreneurial Spirit
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作者 Chao Gang Qian Chen Wang Lei 《China Economist》 2024年第4期58-88,共31页
China has made significant strides in economic and social development since reform and opening up over the past four decades.This process has been influenced by the exceptional innovation and entrepreneurship of Chine... China has made significant strides in economic and social development since reform and opening up over the past four decades.This process has been influenced by the exceptional innovation and entrepreneurship of Chinese business leaders,as well as their profound sentiments of compassion for the world and their country.It is of great significance to foster and promote an entrepreneurial spirit with distinctive Chinese characteristics.Not only is such spirit essential to the high-quality development of enterprises and the economy,but it is also a critical impetus for achieving Chinese modernization.Nevertheless,there is still a paucity of adequate theoretical discourse on the cultural origins and entrepreneurial spirit of outstanding Chinese business leaders.This paper employs the classical grounded theory method to conduct a 10-year follow-up research on 11 representative entrepreneurs and their enterprises.The results indicate that these entrepreneurs exhibit an evolving worldview along the paths of“self-cultivation and moral conduct”,“assisting employees to achieve”,“multilateral symbiosis”,and“the oneness of existence”when interacting with themselves,employees,partners,the general public,and all things in nature.Such entrepreneurial spirit is embodied in this paper as the“Tianxia(all-under-heaven)worldview”.Through theoretical construction,this study defines the concept of“Tianxia worldview”and extensively examines the distinctions and connections between the broadminded“Tianxia worldview”and the kinship-centered“differential mode of association”in terms of internal structure,value orientation,and applicable groups.It is posited that the transition from the former to the latter is a continuous process of transcendence and evolution of the individual mindset.This study has theoretical significance in the context of advancing the research on the Chinese entrepreneurial spirit,transcending the constraints of the management approach based on the“differential mode of association”,and enhancing the research on social responsibility from the perspective of“benefit corporations”.It also has practical value in overcoming the trust dilemma and development impediment of family businesses,ensuring that enterprises consciously fulfill their social responsibilities in a broader social context,and achieving common prosperity and progress for both enterprises and society. 展开更多
关键词 Tianxia worldview differential mode of association Chinese entrepreneurial spirit corporate social responsibility grounded theory method
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广藿香PcGA2ox1基因克隆、VIGS载体构建和表达分析
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作者 严雅玲 曾晴 +2 位作者 严寒静 何梦玲 张宏意 《山东农业科学》 北大核心 2024年第5期19-26,共8页
赤霉素2-氧化酶(gibberellin 2-oxidases,GA2ox)是赤霉素(GAs)代谢途径关键酶,调节活性GAs降解,在植物株型调控中发挥重要作用。为探寻GA2ox基因在广藿香中的功能,本研究对广藿香PcGA2ox1基因进行克隆,得到561 bp的CDS序列。生物信息学... 赤霉素2-氧化酶(gibberellin 2-oxidases,GA2ox)是赤霉素(GAs)代谢途径关键酶,调节活性GAs降解,在植物株型调控中发挥重要作用。为探寻GA2ox基因在广藿香中的功能,本研究对广藿香PcGA2ox1基因进行克隆,得到561 bp的CDS序列。生物信息学分析结果表明,PcGA2ox1蛋白编码186个氨基酸,为亲水性蛋白,分子量为20.98 kDa,等电点为5.81,不含信号肽,无跨膜结构域,具有GA2ox超基因家族的保守结构域,主要定位在细胞核。系统发育分析结果显示,PcGA2ox1基因与丹参GA2ox7的亲缘关系最为密切。qRT-PCR结果显示,PcGA2ox1基因在广藿香中的表达具有组织特异性,叶中表达量最高,根中表达量最低。用病毒诱导基因沉默(VIGS)技术侵染广藿香的结果显示,侵染两周后,PcGA2ox1基因表达量比阴性对照下降83%,比空白对照下降71%,沉默效果明显。本研究结果可为深入了解PcGA2ox1结构、功能和作用机理奠定基础,并为广藿香优良品种选育提供参考。 展开更多
关键词 广藿香 赤霉素2-氧化酶(GA2ox) 基因克隆 病毒诱导基因沉默(VIGS) 表达分析
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Analysis of the Spirit of Struggle in the New Era Based on General Secretary Xi Jinping’s New Year’s Greetings in the Past Decade
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作者 Chengyu Wu 《Journal of Educational Theory and Management》 2024年第1期23-26,共4页
In order to realize the national rejuvenation,General Secretary Xi Jinping attaches great importance to the spiritual strength of struggle,and has repeatedly advocated that all people should exalt the spirit of strive... In order to realize the national rejuvenation,General Secretary Xi Jinping attaches great importance to the spiritual strength of struggle,and has repeatedly advocated that all people should exalt the spirit of strive on different occasions.According to his New Year’s greetings since 2014,Xi Jinping has illustrated the connotation of the spirit of enterprising,the necessity of carrying forward and the requirements for practicing the spirit of struggle from different perspectives,pointing out that all Chinese must keep in mind both domestic and international situations,strive in unity,work creative and industrious with the enthusiasm of seizing every minute,catch the opportunity and solve the problem,make substantial progress on the new journey to construct China into a great modern socialist country in all respects. 展开更多
关键词 New Year greetings The spirit of struggle The requirements of the new era
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温度对丙烷选择氧化催化剂Mo-V-Te-Ox催化性能的影响分析
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作者 张超超 郑秀慧 《山西化工》 CAS 2024年第2期107-109,共3页
本文采用三氧化钼、水合硫酸氧钒和二氧化锑为主要原料,并添加氧化铈助剂,在不同温度下进行水热合成,并结合微波干燥和常规加热干燥,通过程序升温焙烧活化制备了复合氧化物Mo-V-Te-Ox催化剂。通过自建的气固相微型反应装置和气相色谱的... 本文采用三氧化钼、水合硫酸氧钒和二氧化锑为主要原料,并添加氧化铈助剂,在不同温度下进行水热合成,并结合微波干燥和常规加热干燥,通过程序升温焙烧活化制备了复合氧化物Mo-V-Te-Ox催化剂。通过自建的气固相微型反应装置和气相色谱的联用对催化剂样品进行了活性评价。 展开更多
关键词 Mo-V-Te-ox催化剂 水热合成 微波加热法 焙烧活化
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Essen卒中风险评分联合OX-LDL、UCH-1对非房颤人群首发急性缺血性脑卒中患者短期预后的预测价值
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作者 陈小沛 刘慧 《新疆医科大学学报》 CAS 2024年第2期254-258,263,共6页
目的探讨Essen卒中风险评分联合氧化型低密度脂蛋白胆固醇(Oxidized low-density lipoprotein,OX-LDL)、血清泛素C末端水解酶L1(Ubiquitin carboxy-terminal hydrolase-L1,UCH-L1)对非房颤人群首发急性缺血性脑卒中(Acute ischemic stro... 目的探讨Essen卒中风险评分联合氧化型低密度脂蛋白胆固醇(Oxidized low-density lipoprotein,OX-LDL)、血清泛素C末端水解酶L1(Ubiquitin carboxy-terminal hydrolase-L1,UCH-L1)对非房颤人群首发急性缺血性脑卒中(Acute ischemic stroke,AIS)患者短期预后的预测价值。方法根据改良Rankin量表(Modified rankin scale,mRS)评分,将132例非房颤人群首发AIS患者分为预后良好组(mRS≤2分)93例,预后不良组(mRS>2分)39例,在入院治疗前进行Essen卒中风险评分和血清OX-LDL、UCH-L1检测。采用Spearman相关性分析Essen卒中风险评分与OX-LDL、UCH-L1水平的差异,采用Logistic回归分析预后不良的危险因素,采用受试者工作特征(Receiver operating characteristic,ROC)曲线分析Essen卒中风险评分、OX-LDL、UCH-L1水平及三者联合对非房颤人群首发AIS预后评估的效果。结果预后不良组Essen卒中风险评分高于预后良好组(Z=-5.365,P<0.001),血清中OX-LDL、UCH-L1水平高于预后良好组(Z=-6.152,P<0.001;Z=-7.020,P<0.001)。血清中OX-LDL、UCH-L1水平与Essen评分呈正相关(r=0.629,P<0.001;r=0.598,P<0.001)。Logistic回归分析显示,Essen卒中风险评分、OX-LDL、UCH-L1是脑卒中预后的独立影响因素。Essen卒中风险评分联合OX-LDL、UCH-L1对非房颤人群首发AIS预后的ROC曲线下面积为0.896,灵敏度为88.54%,特异度为92.93%。结论Essen卒中风险评分联合OX-LDL、UCH-L1对非房颤人群首发AIS预后有良好的预测作用,Essen卒中风险评分、OX-LDL、UCH-L1水平越高,提示预后不良的风险越大。 展开更多
关键词 Essen卒中风险评分量表 氧化型低密度脂蛋白胆固醇 血清泛素C末端水解酶L1 急性缺血性脑卒中
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外周血sLox-1、tPAI-1水平与冠心病PCI术后MACE发生的关系
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作者 唐一锋 李翔 +1 位作者 李勇军 张苡榕 《蚌埠医学院学报》 CAS 2024年第5期601-604,共4页
目的:研究外周血可溶性凝集素样氧化型低密度脂蛋白受体-1(sLox-1)、组织纤维蛋白溶解酶原激活物抑制剂-1(tPAI-1)水平与冠心病经皮冠状动脉介入术(PCI)后不良心血管事件(MACE)发生的关系。方法:选取161例行PCI术治疗的冠心病病人作为... 目的:研究外周血可溶性凝集素样氧化型低密度脂蛋白受体-1(sLox-1)、组织纤维蛋白溶解酶原激活物抑制剂-1(tPAI-1)水平与冠心病经皮冠状动脉介入术(PCI)后不良心血管事件(MACE)发生的关系。方法:选取161例行PCI术治疗的冠心病病人作为观察组,同期选取健康体检志愿者56名作为对照组,检测并比较2组外周血sLox-1、tPAI-1水平。观察组病人随访观察12个月,根据病人在随访期间是否发生MACE分为MACE组和非MACE组,分析冠心病病人PCI术后发生MACE的影响因素。结果:观察组外周血sLox-1、tPAI-1水平均明显高于对照组(P<0.01)。单因素分析显示,MACE组病人cTnI、hs-CRP、sLox-1、tPAI-1水平均明显高于非MACE组(P<0.01);logistic回归分析显示,cTnI、hs-CRP、sLox-1、tPAI-1水平均为冠心病PCI术后MACE的独立危险因素(P<0.01)。ROC曲线分析显示,外周血sLox-1联合tPAI-1水平预测冠心病病人PCI术后MACE的灵敏度、准确度、AUC分别为91.37%、93.12%、0.901,均高于外周血sLox-1、tPAI-1单独预测。结论:冠心病病人PCI术后外周血sLox-1、tPAI-1水平升高为术后MACE的危险因素,二者联合对冠心病PCI术后MACE具有较高预测价值。 展开更多
关键词 冠心病 冠状动脉介入术 可溶性凝聚素样氧化密度脂蛋白受体-1 组织纤维蛋白溶解酶原激活物抑制剂-1 不良心血管事件
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